Convert Decimal Number to Binary or Hex Without itoa function

Code

#include <stdio.h>
#include <stdint.h>

void print_base(uint16_t num, uint8_t base) {
    // Your logic here
    int rem = 0;
    int i = 0;
    char digits[32]={0};
    if(num==0)
    {
        printf("0");
    }
    while(num)
    {
        rem = num%base;
        num = num/base;
        if(rem>=10)
        {
        digits[i++] = (rem-10)+'A';
        }
        else
        {
          digits[i++] = rem+'0';  
        }
    }
    while(i>0)
    {
        printf("%c",digits[--i]);
    }
}

int main() {
    uint16_t num;
    uint8_t base;
    scanf("%hu %hhu", &num, &base);

    print_base(num, base);
    return 0;
}

Solving Approach